I understand the difference between the three roll-up methods for a group, but I am not sure I understand how Orion uses them.
As an example scenario, imagine I have two routers that provide redundant access into a remote site that Orion NPM is polling. Behind those two parent routers are a group of child devices. I have configured a group of the two gateway routers as the parent to the child group at the site.
Now, if one of the routers is down, Orion will still be able to gain polling access to the child group. If I have set the roll-up method to either Best or Mixed, then I will get a down node alert on the non-responding child object. But, if I used Show Worst for the parent group, the parent group will also have a "down" status even though the NPM server can still poll the child through the one parent router that is still up, right? Or, will it show the child group as "unreachable" just because the status of the parent group is "down" by definition, if not in actuality?
In other words, is the status of the parent dependent on the actual ability of NPM to ping it, or is it based on the PERCEIVED status of the parent dependent upon the roll-up status method that is chosen?
See what I am asking? What is the value of ever using the Show Worst roll-up status? Is it entirely for aesthetic purposes so that red will be used rather than yellow?
Thanks for clarification on this issue. If I can finally understand this part of Groups and Dependencies, I think I can implement this feature completely and accurately.
